Regulator for incubator-heaters.



- G. B. ADAIR.

REGULATOR FOR INGUBATOB. HEATERS.

APPLICATION FILED MAR. 24, 1905.

Patented Mar. 21, 1911.

Wi'rNEssEs 26/ 6 flffl all whom it may concern:

UNITE -'1:

CHARLES E. Axmm, or LEESWLL onto, AssIGNoR, BY MESNE ASSIGNMENTS. TO

' L. s. BACON, BECEIVEF, on WASHINGTON, DISTRICT OF COLUMBIA.

munaimoh non mconivron-nnamnns.

Be it known, at Ll. )ILARLES E. Amie, a citizen ot' the Unit-edStates; and resident of I ieesville, in the county of Carroll and Sta-to of Ohio, have inventedcertain new and useful Improvements in Regulators for lncubator-Heaters'. of which the following is-a specification.

This invention relates to regtilators for incubator heaters, and. consists in the devices hereinafter described and claimed;

' In the d rawings:Figure 1 is an elevation ofa. regulator embodying this inven tion, shown as-at-tached to the top of an incub'ator, which top is shown in cross-section.

.Fig; 2 isaside elevationof the hanger and the expansion andcontr'action mechanismof said regulator; F ig. 3 is' a perspective View of said expansion and contraction mechanism and Fig. 4: is an elevationot a modified form of the mechanism shown in 1.

In the drawing, 1 is the top of an lllCHlHltor. 2 isa damper adapted'to control the heater of- 'cl incubator.

3 is tl re'll amper rodthat is pivoted at 4 on the frame 5 on the incubator l, and (S is a counterweight, adjustable if desired. for nearly balancing the damper side of "sthe damper rod 3. The said damper rod carriesrn'eans, which m'ay beadjustable, andanay then be a screw 7, forengaging a In'ii S for a purpose to be described. In the interior of the incubator is the hanger 9, shown in Figs. 1 and 2, which is attached to the lower surface of suitable portion of the incuiba'to'r, suclvas the top I, and extends down channel iron.

tinned as to nest 111' each other as shown in and laterally, as shown most plainly in Fig.

2:;so'that upon it the expansion and codtrao tion mechanism may rest. The rod 8 rests upon the tog) of said expansion and contraction mechanism, and may be conveniently set in a cup ll. on the top of said expansion and contraction mechanism.-

The expansion and contraction mecl'iimism is a thermostatic device whioln by changes of heat, can produce movement ol' thedamper rod 3 through the connection made by the rod 8. The thermostatic device is col'nposed of flat hats having their edges turned at an angle to the center of said liars so as to produce practically the shape of a 'lhese bars are so propor- Fig. 3Q ,The thermostatic apparatus consists inits simplest form of the straight plate or -s"p=n1cti i or ne im Patented Mar. 1a1 1. mum Dem finch 24,1995. Serial Nb. 25;,771.

I channel iron 12 'aml t -he.bent channel iron 13 g ost ng in or upon"the channel lron .12, and narmg its ends fasten I ashy the rivets 14, t-othe other channel iron, lhehent channel iron 12' bentonly at its middle, at which point ll0lCll9S-l5 a re cut from its turned ei'lges'so as to leave only a portion ofthe center of said. channel iron "audio produce 'a short but flexible fiat portion thereof. W'hen the outer endsof the two channel lvjj aiicthe outer channel iron notches 17 in the centers of and ncstifng-arou'ud the chan Km ihe channel irons 1b are fas: tonedv together at their middle points. as shown lli -l lfifil 1 and '2, by suitable fasteners, sucli as thc rivets 18. The lowest member ot'thef combined systems rests and is fastened at'its center to the hanger 9, while the cup -or socket ll is on the uppori nost member. it will now be seen that contraccause'increased movement in proportion to the number oi thermostatic elements employedv Oi course, it is. necessary that the middle clen'ient 12 should be of ditlercnt exnausibilit; per degree of heat from the bent.- (-lemenls if; and '16. lh'ass and iron term a. practicable con'ihinaiiom and. the ap 'iaratus shown has the outer bent members 123 and 1G ol' greater ercnansihility than the middle. member 12. in which case upon a rise in teuu acrati|ro l'he rod 8 is pushed upwardly and lhe damper is raised.

in Fig. "l. the same system oi tlnirmoslalic elements shown as in Figs. and 3,but-the ystem has a series ol? perforations through which passes a rod 20 which is laslenml in a suitable way. as by a nut to the lowest. mmuh-er of the tllm'mostal; and the upper-- most; member of the thermos-lat is fastened by the. support .22 lo llusuuder side ol a suitslanco as the root 1. The rod 20 continues I upward, and bysu tablc means such as the irons are fastened together, the middle of the (.llilllllll iron 13 IS'l'fll-SEtla suitable distious and expansions of the systems will able portion of the ii-urubalor, such l'or in- I adjustable nut 23, engages the upper side of different widths and have their ends nest-.

ed as shown; that is, the outer channel plates 13 are nested in the intermediate channel plates 12, and the intermediate channel plates 12 are nested' in the inner channel plates 16. The ends of each set of channel plates are secured together by suitable means, such as the rivets 14. The thermostat may be called an influencer or operating device for regulator parts, such as the rod 8 or 20, the damper rod 3 or 24 and the damper 2. In the double thermostatic apparatus, the inner channel plates 12 and the outer chan nel plates 18 have their channel flanges cut away at their middle part to form the notches 15 and 17, and the channel plates 16 are secured'together at their middle part by means of the rivet 18.

What I claim is 1. In a thermostat, the combination of a plurality of channel plates secured together at their ends, said plates being of different Widths and having their ends nested substantially as described.

2. A thermostat comprising an' influencer consisting of inner channel plates. having their flanges cut away at the middle part, in-

termediate channel plates nested in the inner channel plates, outer channel plates having their flanges cut away at the middle part and nested in the intermediate channel plates, means for securing the inner channel plates together at the middle part, means for securing the ends of the lower set of channel plates together, and means for securing the ends of the upperset of channel plates together, and regulator parts 3. In a thermostat, the combination of a plurality of channeled plates having their ends nested and rigidly connected, one of said plates being provided With a centrally dis posed reduced portion.

4. In a thermostat, the combination of a pair of channeled plates having their ends nested and rigidly connected, the flanges of both of said channeled plates being cut away at the central portion thereof.

5. In a thermostat, the combination of a channeled-plate, bowed channeled p'lateson opposite sides of said first mentioned channeled plate,-the ends of all of said. channeled plates being nested and rigidly connected. 6. In a thermostat, the combination of a channeled plate, bowed channel platcson opposite sides of said first mentioned channeled plate provided with centrally reduced portions, the ends of all of said channeled plates being nested and rigidly connected.

:CHARLES E. ADAIR. Witnesses C. Z. DAvIs, CHAS. NEWTON 

